Difference between Functional and System testing?

Answer Posted / e v s prakash

In functioanl testing, only the funcionality of the
application is tested which may be part/specific
functionality or the whole functionality of the
application. In system testing, a full fledged testing can
be done on the application in an environment which
resembles the client environment. The full fledged testing
can include Functional, performance, stress, load and all
other kinds of testing on the application. Hence the System
testing is considered to be an actual full fledged test on
an application rather than functional which concentrates
only on the functionality of an application.

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